Question

what is the lewis symbol for be^{2+}? select the correct answer below: o :be^{2+} o :be^{2+} o be^{2+} o :be^{2+}

Explanation:

Step1: Recall Lewis symbol concept

Lewis symbols show valence - electrons as dots around the element symbol. Cations lose valence electrons.

Step2: Determine beryllium's valence electrons

Beryllium (Be) is in group 2, has 2 valence electrons.

Step3: Analyze $\text{Be}^{2+}$

$\text{Be}^{2+}$ has lost its 2 valence electrons. So, there are no dots around the Be symbol for $\text{Be}^{2+}$.

Answer:

O $\text{Be}^{2 +}$